package com.zwk.order.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.github.wxpay.sdk.WXPayUtil;
import com.zwk.base.handler.GuLiException;
import com.zwk.order.entity.Order;
import com.zwk.order.entity.PayLog;
import com.zwk.order.mapper.PayLogMapper;
import com.zwk.order.service.OrderService;
import com.zwk.order.service.PayLogService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zwk.order.util.HttpClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * 支付日志表 服务实现类
 * </p>
 *
 * @author zwk
 * @since 2022-09-01
 */
@Service
public class PayLogServiceImpl extends ServiceImpl<PayLogMapper, PayLog> implements PayLogService {

    @Autowired
    private OrderService orderService;

    @Autowired
    private PayLogMapper payLogMapper;

    // 生成微信支付二维码
    @Override
    public Map createNative(String orderNo) {
        try {
            // 根据订单号查询订单信息
            QueryWrapper<Order> wrapper = new QueryWrapper<>();
            wrapper.eq("order_no", orderNo);
            Order order = orderService.getOne(wrapper);

            // 使用map封装生成二维码需要的参数
            Map map = new HashMap<>();
            map.put("appid","wx74862e0dfcf69954");
            map.put("mch_id", "1558950191");
            map.put("nonce_str", WXPayUtil.generateNonceStr());
            map.put("body", order.getCourseTitle()); //课程标题
            map.put("out_trade_no", orderNo); //订单号
            map.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue()+"");
            map.put("spbill_create_ip", "127.0.0.1");
            map.put("notify_url", "http://guli.shop/api/order/weixinPay/weixinNotify\n");
            map.put("trade_type", "NATIVE");

            // 发送httpclient请求, 传递参数xml格式, 微信支付提供的固定的地址
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
            // 设置xml格式参数
            client.setXmlParam(WXPayUtil.generateSignedXml(map, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            // 发送请求
            client.post();

            // 得到返回的结果(xml格式)
            String content = client.getContent();
            // 将xml数据转换成map
            Map<String, String> stringMap = WXPayUtil.xmlToMap(content);
            // 封装最终需要的数据
            Map resultMap = new HashMap<>();
            resultMap.put("out_trade_no", orderNo);
            resultMap.put("course_id", order.getCourseId());
            resultMap.put("total_fee", order.getTotalFee());
            resultMap.put("result_code", stringMap.get("result_code"));  //返回二维码操作状态码
            resultMap.put("code_url", stringMap.get("code_url"));        //二维码地址

            return resultMap;

        } catch (Exception e){
            e.printStackTrace();
            throw new GuLiException(20001, "生成微信支付二维码错误");
        }
    }

    // 查询支付状态
    @Override
    public Map<String, String> queryPayStatus(String orderNo) {
        try {
            //1、封装参数
            Map m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("out_trade_no", orderNo);
            m.put("nonce_str", WXPayUtil.generateNonceStr());

            //2 发送httpclient
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
            client.setXmlParam(WXPayUtil.generateSignedXml(m,"T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            client.post();

            //3 得到请求返回内容
            String xml = client.getContent();
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);
            //6、转成Map再返回
            return resultMap;
        }catch(Exception e) {
            return null;
        }
    }

    // 添加记录到支付表, 同时更新订单表订单状态
    @Override
    public void saveAndUpdateOrder(Map<String, String> map) {
        // 从map中获取订单号
        String orderNo = map.get("out_trade_no");
        // 根据订单号查询订单信息
        QueryWrapper<Order> wrapper = new QueryWrapper<>();
        wrapper.eq("order_no", orderNo);
        Order order = orderService.getOne(wrapper);

        // 更新订单表订单状态
        if(order.getStatus().intValue() == 1) { return; }
        order.setStatus(1); // 1代表已经支付
        orderService.updateById(order);

        // 向支付表添加支付记录
        PayLog payLog = new PayLog();
        payLog.setOrderNo(orderNo);  //订单号
        payLog.setPayTime(new Date()); //订单完成时间
        payLog.setPayType(1);//支付类型 1微信
        payLog.setTotalFee(order.getTotalFee());//总金额(分)
        payLog.setTradeState(map.get("trade_state"));//支付状态
        payLog.setTransactionId(map.get("transaction_id")); //流水号
        payLog.setAttr(JSONObject.toJSONString(map));
        payLogMapper.insert(payLog);

    }
}
